延迟焦化吸收稳定系统流程模拟与优化分析  

Flowsheet Simulation and Optimization Analysis of Absorption/Stabilization System in Delayed Coking Unit

作　　者：阎龙[1] 赵瑞峰[2] 张金先[3] 申海平[1] 范启明[1] 

机构地区：[1]中国石化石油化工科学研究院,北京100083 [2]中国石化石家庄分公司,河北石家庄050032 [3]中国石化广州分公司,广东广州510726

出　　处：《石油学报（石油加工）》2011年第5期760-765,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国石油化工股份有限公司项目(109110)资助

摘　　要：针对国内延迟焦化吸收稳定系统普遍存在的分离效果较差的问题,以工业装置为例,通过详细的流程模拟计算,对影响系统分离效果的主要因素进行了灵敏度分析,考察了解吸塔进料方式、解吸塔釜温、稳定塔釜温、稳定汽油吸收剂流量、液化气回流比等因素对系统吸收效果的影响,在此基础上提出了流程的优化方案。模拟结果表明,改造后的流程能够改善干气不干的问题,增产液化气和提高稳定汽油质量。A suggestion for improving absorption/stabilization system in delayed coking unit was proposed,attempting to provide an example of solving the problems of low separation efficiency of the system in existing refineries in China.Industrial case studies by using detailed simulation and analysis were presented to discuss the sensitivity of operation factors in the system.The studies focused on the effect of factors,including feeding method of desorption tower,bottom temperature of desorption tower and stabilizer tower,stable gasoline absorbent flow and LPG reflux ratio.Finally,the optimized flowsheet was proposed,and the results indicated that the new flowsheet had a good effect on decreasing the mole fraction of C3 and C4 in the dry gas,raising output of LPG and improving quality of stable gasoline.

关 键 词：吸收/稳定 流程模拟 延迟焦化 催化裂化 

分 类 号：TE624.32[石油与天然气工程—油气加工工程]